Machine for decorating articles such as cups, pitchers, bowls, and the like



Oct. 6, 1953 .1. K. OHARE 2,654,313 MACHINE FOR DECORATING ARTICLES-SUCHAS CUPS. PITCHERS, BOWLS, AND THE LIKE Filed Sept. 24,1949 3Sheets-Sheet 1 IN VEN TOR.

f Kenna/i1 097a WW VM M' flTTORNE Y Oct. 6, 1953- J K O'HARE 2,654,313

MACHINE FOR DEbOR ATING ARTICLES SUCH AS CUPS. 'PITCHERS, BOWLS, AND THELIKE Filed Sept. 24. 1949 3 Sheets-Sheet 2 v a ww kg INVENTOR. ffemwlkfiarz Oct. 6, 1953 Q'HARE 2,654,313

MACHINE FOR DECORATING ARTICLES SUCH AS CUPS. PITCHERS, BOWLS, AND THELIKE Filed Sept. 24, 1949 5 Sheets-Sheet 3 IN V EN TOR. fikmmik flbare147' TO/PIVE Y Patented Oct. 6, 1953 MACHINE FOR DECORATING ARTICLESSUCH AS CUPS, PITCHERS, BOWLS,

AND THE LIKE James Kenneth OHare, Alliance, Ohio, assignor to RoyalChina Inc., Sebring, Ohio, a corporation of Ohio Application September24, 1949, Serial No. 117,611

Claims. 1

The present invention relates generally to decorating machines and moreparticularly to a machine for applying decorations to either the body orhandle portions, or to both the handle or body portions of articlessuch' as cups, pitchers, bowls, and the like.

The appearance of table ware is greatly enhanced by providing it withdecorations or designs of different color than that of the underlyingarticle. For example, a normally plain white or cream colored surface ofan article may be greatly improved by decorating it with a blue, green,or other colored floral design. Applying such decoration-s by hand ormanually is slow and tedious and necessitates that the ware be sold atprohibitive prices. In spite of this various hand stamping operationsand the like have been utilized extensively in applying colored designsor decorations to curved, bulged, or cylindrical articles such as cups,soup bowls, pitchers, sugar bowls. While various machines have beendevised in attempting to produce greater quantitles of the lattermentioned types of decorated ware many of them have, for variousreasons, never gone into general commercial use. Some previous machineshave been too complicated and expensive to construct and maintain,others have not printed a sufficiently clear or well defined design onan article, others have decorated only a small part of the article at atime, and with stillothers the rate of production of clearly imprintedor decorated ware has not been sufliciently great.

In view of the fact that such articles are sold in a high competitivemarket the cost of decorating them must be kept as low as possible. The

present invention aims to provide a relatively simple and inexpensivemachineadapted to form clearly defined colored decorations or designs onarticles at a rapid rate. The machine is adapted for use in decoratingboth handle and body portions of handled articles or either ofthoseportions alone. The invention contemplates the provision of improvedmeans for holding the article to be decorated, new and improvedmechanism and means for decorating various surface portions of the heldarticles, and improved means for getting a coloring material or ink froma supply to the decorating means.

An object of the present invention is to provide a relatively simple,inexpensive and improved decorating machine.

Another object of the invention is'to provide a decorating machine whichincludes new and improved means for placing ink or coloring materials ona decorating stamp of the machine,

Another object of the invention is to provide a decorating machineembodying an improve article holding means.

Another object is to provide new and improved means for decoratinghandle portions of articles such as cups, pitchers, bowls, etc.

Another object is to provide a machine for decorating articles whichrequires minimum preliminary skill or training on the part of anoperator. I

Still another object is to provide a machine for decorating the exteriorsurfaces of curved articles which is foolproof in operation.

A still further object of the invention is to provide a machine for morerapidly and efficiently decorating hollow articles having curved,inclined, or bulged exterior surfaces.

Other and further objects of the invention will be obvious upon anunderstanding of the illustrative embodiment about to be described, orwill be indicated in the appended claims, and various advantages notreferred to herein will occur to one skilled in the art upon employmentof the invention in practice.

A preferred embodiment of the invention has been chosen for purposes ofillustration and description and is shown in the accompanying drawings,forming a part of the specification, wherein:

Fig. 1 is a perspective view showing the front of the present machine;

Fig. 2 is a perspective View showing the rear of the machine illustratedin Fig. 1;

Fig. 3 is a fragmentary view illustrating more particularly a handledecorating portion of the present machine;

Fig. 4 is a side view of the handle decorating portion of the machineillustrated in Fig. 3;

Fig. 5 is a perspective view showing a decorating stamp adapted to forma decoration or designs on articles having a single handle portion;

Fig. 6 is a perspective view of a stamp adapted to apply a decoration tothe surfaces of articles having two handle portions;

Fig. 7 is a perspective view of a stamp adapted to print a decoration onan article such as a pitcher having a projecting handle and a projectingspout;

Fig. 8 is a perspective view showing an article holding means of thepresent machine; and

Fig. 9 is a fragmentary side elevational view showing one form of meansfor adjustably supporting the article holding means illustrated in Fig.8.

Described generally the presentinvention ineludes (Figs. 1 and 2) asupporting table I upon which is mounted a rotatable stamp supportingmeans or disc 2 that carries a plurality of decorating stamps or sets ofdecorating stamps at spaced intervals. As the stamp support means 2rotates, the stamps or sets of stamps move successively toward and pasta device or mechanism 4 which supplies suitable coloring or inkingmaterial to the design forming surfaces of the stamps. colored thestamps are carried toward an article 5 retained by the holding meansshown adjacent the lower part of the stamp supporting means or disc 2.The stamps are so positioned on the support means 2, with respect to anarticle 5, that when the exterior body portion of the article is to bedecorated the decoration-applying portions of the stamps come intocontact with the surface of the article and rotate it on its holder orspindle concurrently with movement of the stamp.

As shown in Fig. 1 the projecting handle portion of a cup is disposed soas to be contacted by a leading edge of a body stamp I9 carried by thestamp supporting member 2. The lengths of the body stamps H! are such asto form a decoration over an appropriate length of the cup or otherarticle held on the supporting spindle. As the body stamp I9 moves pastan article 5 it simultaneously rotates the article on its supportingholder or spindle at the same speed of movement as the stamp and as aresult a decoration is applied in the straight line about the exteriorsurface of the article. After a stamp has thus decorated the exteriorsurface of an article the article may be lifted from its holder andreplaced by another prior to the next succeeding stamp reaching thearticle holder. In this manner each stamp or set of stamps decorates asingle article, a fresh or undecorated article being placed on theholder during non-decorating intervals. The flattened or cut awayportions of the supporting disc 2 intermediate the decorating stampsfacilitate application of articles to and their removal from the holderor spindle during the nondecorating intervals.

For purposes of convenience the members which form the colored design orimpressions on the articles are broadly referred to herein as "stampsand any imprint or impression made by them is referred to as a design ordecoration. While a cup having a single projecting handle is illustratedit will be understood that the invention is applicable to the decorationof numerous other articles, several examples of which have beenmentioned; a cup with only a single handle is chosen for illustrationsince it is a well known article in every day use. While the articles tobe decorated are usually composed of some ceramic material the presentmachine is adapted to form designs on articles composed of any material,for example, glass, wood, plastic, etc., these designs being appliedprior to glazing of the article or over the glaze, as may be desired.

In Fig. 2 the stamp supporting means 2 is shown bolted to an attachingdisc H which in turn connects with and is turned by a rotatable shaft 1'connected therewith, the shaft 1 projects from a speed reducer 8 whichis supported on a suitable framework 9 in turn bolted, welded orotherwise secured to the surface of the supporting table I. The stampsupporting means 2 may be rotated in counterclockwise direction by anelectric drive motor l0, through the intermediation of pulley ll, beltor chain 12, ulley After being thus inked or 13, speed reducer 8 and theshaft 1 which projects from the speed reducer and is connected by thefastening disc [4 with the stamp supporting means 2. The stampsupporting means 2 preferably has its plane inclined somewhere in theneighborhood of 60 to 45 with respect to the horizontal since thisgreatly facilitates placing articles in correct position on the articleholding means, facilitates the application and removal of decoratingstamps and provides optimumobservation-of the machine during itsoperation, as will be further clarified hereinafter.

While the stamp supporting means 2 is shown adapted to carry imprintingstamps at three spaced locations it will be clear that a greater orlesser number of stamps may be carried. Three stamp locations is verysatisfactory since it gives ample time for removal of a decoratedarticle 5 from an article holding means and the placing of a fresharticle thereon for receiving decoration from an approaching orsucceeding stamp. In Fig. 1 two of the stamp locations i6 and ii areshown without a body stamp [9 or ahandle stamp 20 but in normaloperation each location will carry one or both of the stamps shown atthe lower portion of the stamp supporting means 2.

The body stamp I9 is applied to form a decoration on the exterior bodyportion of an article 5 and the handle decorating stamp 20 is adapted todecorate surfaces of the outwardly projecting handle portion 6 of thearticle 5. The body stamp l9 preferably comprises a base portion 22,which may be of wood, metal, plastic or any other suitable material, towhich is applied by adhesive or other-wise a layer or a thickness ofsponge rubber 23 and an outermost semi-hard layer of design rubber 24,upon which is embossed or formed the design or decoration to be placedon the body of an article. The sponge rubber layer 23 is preferably inthe neighborhood of one-half inch thick and the adhered design rubberlayer 24 may be about one-sixteenth inch in thickness. The sponge rubberlayer 23 provides for appropriate yieldability during inking of thedesign layer 24 and also during contact of the latter with the articlebeing decorated. As shown, each of the base portions 22 of a bodydecorating stamp rests uponv a mounting member 21 and is secured theretoby bolts 26. The mounting members 2i are provided at their undersideswith spaced projecting guides 25 that fit into and are guided bycomplementary spaced recesses or slots 21 in the stamp supporting means2. This construction provides for adjustment of the stamps toward andaway from their center of rotation and facilitates positioning themequidistantly from the center of rotation so that they are in correctposition for applying designs on the articles. A desired position ofadjustment may be held by retaining bolts and washers 28 which extendthrough the spaced slots 21 and into the mounting members 2|.

The body decorating stamp (9 shown more particularly in Figs. 1, 2 and 5is generally used for applying a design or decoration to an articlehaving a single outwardly projecting handle portion 6. The stamp isadapted to come into contact with the exterior body of the article atone side of a projecting handle 6 (Fig. 1) and to rotate .or drive thearticle 5 on its supporting spindle until the trailing edge of the stampreaches a position close to the opposite side of the projecting handle6. This results in the formation of a suitable .design entirely aroundthe exterior of the article 5. Where the article is, for example, a soupbowl having no handle portion, the arcuate length of the stamp |9 may besuch as to form an endless design entirely around the exterior surfaceof the article.

The stamp shown in Fig. 6 may be utilized where it is desired to form adesign on a cup having two diametrically opposed handle portions. One ofthese stamps may be carried at each of the stations on the stampsupporting disc 2, one of them forming a design around the curved bodyportion at one side of the article between the two projecting handleportions and the next succeeding stamp decorating the opposite side ofthe article between the two handles. Where the article to be decoratedis a pitcher having both a handle and a spout the body decorating stampof Fig. '7 may be used, in which the recessed or cut away portion 29is'adapted to accommodate the outwardly projecting spout portion.Preferably the sponge rubber backing layer 23a of this latter stampis'augmented and softened at the points of impingement of the spout bythe addition of a sponge rubber layer about three-fourths of an inchthick, this serving to allow the printing stamp to better follow thesemi-cylindrical surface without undue distortion. The means fordecorating handle portions of articles is shown more particularly inFigs. 1, 3 and 4. It comprises a bracket 3!, bolted to the stampsupporting means 2, which rotatably supports an arm 32. The outwardlyprojecting portion of the arm 32 carries on a lateral extension 34thereof, the handle decorating stamp 2% previously referred to. Thishandle decorating stamp is preferably of arcuate or curved shape at itsoutward face so as to conform generally to the curvature of a handleportion to be decorated. The stamp 29 may comprise a plurality ofthicknesses of sponge rubber to the outer surface of which is adhered asemi-hard design forming rubber. The inwardly projecting portion of therotatable arm 32 preferably carries a counterweight 35 and the extent ofrotation or movement of the arm 32 is limited by adjustment screws 36,31 threaded into lugs 39 carried at the underside of the stampsupporting means 2. When a handle decorating stamp has been carried bythe rotatable stamp support means 2 to a position adjacent the inking orcoloring mechanism 4 the counterweight 35 at the inner end of therotatable arm 32 turns the arm about its axis of rotation and moves thestamp 29 to its most outwardly disposed position. The extent of thisoutward movement may be regulated by suitably positioning the adjustmentstop bolt 36 against which the inner end of the arm 32 comes to rest. Inthis outwardly disposed position the handle decorating stamp 29 isadapted'to receive coloring material from themechanisrn 4 at about thesame time that a body decorating stamp l9 receives coloring material. Asthe stamp sup. porting means 2 continues to rotate, the handledecorating and body decorating stamps i9 and 20 move away from thecoloring device t and approach an article positioned adjacent the lowerportion of the carrying disc 2. As this occurs the counterweight 35rotates the arm 32 about its axis of rotation until the inwardlyextending part of the arm comes to rest against the adjustment stop 37,in which relationship the handle decorating stamp 29 is in an inwardlydisposed relationship. In this latter relationship an outwardly disposedsurface of the handle decorating stamp 20 is adapted. to contact a 6handle 6 and transfer coloring material to it. The handle decoratingstamp 20 contacts the handle 6 firmly since the adjustment stop 3'!prevents undue movement of the stamp away from the handle 6.

Whereboth the body and handle portions of articles are to be decorated,each station on the stamp carrying means 2 will be provided with both abody decorating stamp |9 and a handle decorating stamp 20. The handledecorating stamp 29 may be removed or omitted from the machine in thoseinstances where it is desired to decorate only the body portions ofarticles.

The portion of the machine 4 which applies ink or coloring material tothe stamp applies the material simultaneously with movement of thestamp. As the stamp carrying means 2 rotates, the stamps supportedthereon are carried past a freely rotatable brayer or roller 4| thatreceives ink or coloring material from a fountain 42 and then moves to aposition for contacting the stamp or stamps and transferring materialthereto V, V

As shown in Fig. 2 the brayer or roller 4| is carried by a shaft 43which is freely rotatable in roller bearings dd'carried byspac'edbearing blocks 45. The bearing blocks are securedto an oscillatablemember or cap 48 carried at the upper part of a supporting column 49.The cap 48 may freely rotate or oscillate to and fro between acolor-receiving position adjacent the ink fountain 42 and the upperportion of the stamp carrying means 2, as will be further described. Thesupporting column 49 is welded or otherwise secured to a plate member50, which is in turn carried by the supporting framework 9 through theintermediation of adjusting or leveling bolts and nuts 5|. The adjustingmeans 5| permits shifting of the color roller 4| with respect to thestamps to thereby provide optimum inking of the stamps.

A spring 54 connected with the oscillatable cap 48 at one side thereofnormally urges it, together with the rotatable shaft 43 and color roller4| carried thereby, toward the color fountain 42. When the color roller4| is in such position it picks up or receives color fromtransfer-rollers for subsequent transfer to the decorating stamps;

Movement of the roller or brayer 4| toward stamps on the stamp carryingmeans 2 is achieved by cams 55 secured to the underside of the stampsupporting means 2. As the stamp supporting means 2 rotates togetherwith the stamps and the earns 55, the cams come into contact withandmove outwardly a cam roller 51, reciprocable rod 58 that carries the camroller and a roller 59 carried adjacent the opposite end of thereciprocable shaft 53. As the latter roller 59 moves in a direction awayfrom the stamp supporting means 2 it pulls against a cable 6| which isconnected at one end with a fixed pin 62 and at its other end with a lug63 carried by the oscillatable cap 48. Thus rotation of the stampsupport 2 and earns 55 serves to rotate or oscillate the cap 43 andswing the brayer shaft and brayer 4| away from color-applying rollers ofthe fountain 42 in opposition to the effect of the spring 54. Preferablythe coloring roller ll! oscillates through about a arc.

The effective length of a cam 55 determines the time during which thecoloring roller 4| is in position to contact a decorating stamp or setof stamps and also determines. the time during which the spring. 54 mayhold the coloring roller in position to receive ink or coloring maact-ges tone! from the fountain 42. Preferably a singl cam is providedadjacent each of the d ff rent stamps or sets of decorating stamps sothat the coloring roller 4! may be moved into color-applying position aseach stamp moves into color receiving position.

The fountain 42 which supplies coloring or inking materials to thecoloring roller 4| may be of any known and suitable type. In Fig. 1 itshown supported upon a platform 46 carried by a framework 41. Thefountain may be driven by an electric motor 65 through theintermediation of belt 56, pulley 61, speed reducer 68, belt 69, pulley10 and shaft ll. Leveling or adjustment of the inking fountain 42 may beachieyedfby suitable adjustment bolts, nuts and ashers lZ- Articles tobe decorated are preferably supported adjacent a lower portion of thestamp supporting means 2 by the holder or spindle of the typeillustrated more particularly in Figs. 8 and 9; This holder or chuckincludes a head portion 15 provided with substantialy radially extendingopenings through which project retaining fingers or pins 16, each fingerbeing connected adjacent its inner end with a resilient or spring-likestrip 11 contained within an opening 18 of the head 15. The exteriordimension of the head 75 is preferably slightly smaller than the insidediameter of an object to be decorated so that an article may be fitteddownwardly over the exterior surface of the head until an edge restsagainst a projecting ledge 19 of the head. The spring loaded fingers 16are pressed inwardly as the article is fitted down over the head 15 andtheir individual spring strips IT accommodate any inequalities which mayexist at the interior of the ware. The outer ends of the fingers may becurved or tapered so that an article may be more readily fitteddownwardly over them.

The head 15 and fingers just described may be carried by a supportingshaft 8! which is longitudinally adjustable so as to vary the height ofthe head of an article carried thereby with respect to a decorating staml9 (Fig. 9), which is laterally adjustable along a slot 85 so as to varythe spacing of the head and an article carried thereby with respect to astamp i9, and is also adjustable in inclination by means of the clampinghandle 84 so as to vary the inclination of the exterior surface of anarticle with respect to a stamp 19. While this latter feature is shownprovided in Fig. 9 by a sort of clamp screw 84 it may be provided by anyother suitable means, for example, by a hinge in the member whichsupports the head or chuck 15. Adjustment of the inclination of the headwith respect to the stamp is particularly desirable in instances wherethe ware is not truly cylindrical or straight sided;- in such instancesthe adjustment facilitates aiming the stamp at the bulge of an untruesurface so that the resiliency of the stamp may allow the stamp to fitaround the bulge and give 'a good decoration impression on the ware.Where this provision for changing the inclination of the article is notprovided. it is necessary to angle or hollow out the stamps to make themmatch a bulge, curve or angle of ware to be decorated; this alternativeis undesirable due to the trouble and expense included.

Particular coloring or inking materials which may be used to form theactual decorations on the ware have not been referred to in detailherein as the present machine is equally useful with ny suitable inks ocoloring materials.

It will be seen that the present invention provides a new and improvedmachine for forming decorations on the surfaces of articles,particularly articles such as cups, bowls, pitchers and the like. Themachine may be used to apply decorations to only the body portions ofarticles or to both body and handle portions thereof. The various stampsdisclosed herein and others of suitable nature are readilyinterchangeable. Improved means is provided for applying coloringmaterials or inks to the stamps, a coloring roller normally remaining incontact with ink transferring rollers of an inking fountain and movingquickly and accurately into position for application of coloringmaterial to decorating stamps as the stamps approach their color receiving position. The improved inking mechanism may apply the ink orcolors to the body decorating stamps above or to both body decoratingand handle decorating stamps.

The handle decorating stamp moves automatically into an outwardlydisposed color-receiving position for the application of coloringmaterials to the handle portions of articles. The inclination of thestamp supporting means facilitates the automatic operation of the handledecorating stamp and facilitates the application and removal of articlesas well as the operation of the entire machine. The article holdingmeans provides for ready and rapid application and removal of articlesand the correct spacing, eleva tion and inclination of the articles withrespect to the decorating stamps. The present machine is of relativelysimple construction and is practically foolproof in operation; thesefeatures are highly desirable and cooperate to require a minimum amountof skill or training on the part of an operator. With the presentmachine a single operator may produce as high as fifty dozen pieces ofdecorated ware for each hour of operation.

As various changes may be made in the form, construction and arrangementof the parts herein without departing from the spirit and scope of theinvention and without sacrificing any of its advantages, it is to beunderstood that all matter herein is to be interpreted as illustrativeand not in a limiting sense.

Having thus described my invention, I claim:

1. A machine for applying decorations to the exterior surfaces ofarticles, comprising the combination of means for supporting an articleto be decorated, a rotatable structure having a plurality of angularlyspaced stamp-supporting portions each located a greater radial distancefrom the axis of rotation of the structure than intermediate portions ofthe structure, a plurality of stamps on said stamp-supporting portionsand movable successively into contact with articles on said articlesupport, color supplying means spaced from said stamp-supportingportions, color-transfer means, and means for oscillating saidcolor-transfer means between a color receiving position adjacent saidcolor supplying means and behind the plane of said supporting means anda color-transferring position adjacent said stamp supporting portions.

2. In a machine for applying decorations to the exterior surfaces ofarticles, the combination of rotatable stamp support means having itsplane of rotation inclined with respect to the horizontal, a bodydecorating stamp on said support and a handle decorating stamp rotatablymounted on said support at a location spaced from said body decoratingstamp, both stamps being movable with said support between acolor-applying location and a decoration-applying location, colorsupplying means adjacent said color-applying location, and colortransferring means oscillatable between said color supplying means andsaid stamps.

3. A machine for applying decorations to the exterior surfaces ofarticles, comprising the combination of means for rotatably supportingan article to be decorated, a rotatable stamp supporting table, aplurality of stamps on said table movable successively into contact withthe surfaces of articles on said article support, color supplying meansincluding a roller spaced from and disposed generally parallel to theplane of said table, color-transferring means including an additionalroller oscillatable between a colorreceiving position against the firstroller and a color-transferring position wherein its axis of oscillationis disposed generally parallel to the plane of said table, and means foroscillating said color-transferring means including a plurality of camscarried by and projecting from said table.

4. In a machine for decorating body and handle portions of articles ofthe class described, the combination of rotatable stamp supportingmeans, a body decorating stamp carried by and rotatable with saidsupporting means, and a handle decorating stamp carried by and rotatablewith said supporting means and swingably mounted on said supportingmeans at a location spaced from said body decorating stamp.

5. In a machine for decorating body and. handle portions of articles ofthe class described, the combination of rotatable stamp supportingmeans, a body decorating stamp carried by said supporting means, an armrotatably carried by said supporting means at a location spaced fromsaid body decorating stamp and movable in a plane generally parallel tothat in which said stamp supporting means is rotatable, and a handledecorating stamp carried by said arm adjacent one end thereof.

6. In a machine for decorating body and handle portions of articles ofthe class described, the combination of rotatable stamp supportingmeans, a body decorating stamp on said supporting means, an armrotatably mounted on said supporting means at a location spaced fromsaid body decorating stamp and rotatable about an axis generallyperpendicular to the plane of rotation of said supporting means, ahandle decorating stamp carried by said arm adjacent one end theerof,and a counterweight carried by said arm adjacent an opposite endthereof.

7. In a machine for decorating body and handle portions of articles ofthe class described, the combination of rotatable stamp supportingmeans, a body decorating stamp on said supporting means, an armrotatably mounted on said supporting means at a, location spaced fromsaid body decorating stamp and movable with the supporting means througha closed path, a handle decorating stamp carried by said arm adjacentone end thereof, and adjustable means carried by said supporting meansfor limiting the extent of rotation of said arm.

8. A machine as claimed in claim 3, in which said cams project from therear of the table and project axially thereof to move the additionalroller in one direction, and a spring is operatively connected with saidroller for moving it in an opposite direction.

9. A machine for decorating the surfaces of articles, comprising thecombination of means for supporting an article to be decorated, meansrotatably supporting a decoration stamp, color supplying means spacedfrom said article supporting means and out of the plane of rotation ofsaid decorating stamp, color transferring means, and means for movingsaid color-transferring means through an angle of about ninety degreesbetween said color sup-plying means and a position in the plane and pathof movement of said decorating stamp.

10. A machine as claimed in claim 1 in which said rotatable structurehas its plane of rotation inclined with respect to the horizontal.

J. KENNETH OI-IARE.

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